Cycling Bicycle Bike Wired LCD Computer Odometer Speedometer Timer Waterproof Real-time display of the current speed,trip distance,riding time,trip time,calorie consumption and current time Easy view of the maximum speed,average speed ,total riding time, total riding distance and rotations per miunte of the wheel Options of 12h/24h systems,stopwatch feature and alert feature for bicycle maintenance . Length unit options of klometer/mile Imported sensors to provide stable performance, and accurate speed